You can see from my signature that I combine 4:3 and do at least 16:8 on a daily basis. This has worked for me very well indeed and I am close to my target weight now. I too feel more alert when I don't eat in the morning and have largely given up doing so.
Like @callyanna I see no reason to eat now when I don't feel like it. Eating only when you are genuinely hungry is what to strive for and then only within your TDEE on non-fast days.
Like @callyanna I see no reason to eat now when I don't feel like it. Eating only when you are genuinely hungry is what to strive for and then only within your TDEE on non-fast days.